Just took a trip up to Oregon and this was my peak gas mileage. 2 Door on stock BD wheels and general grabbers, whole time in eco. Moderate to aggressive driving most the way. 92 octane while I was there and usually using 91 while back home. Generally I get 18-20
Honestly most Bosch are great, I have sold thousands of wiper blades and stay away from silicone they wear out faster and lose their shape, just my experience. Bosch Icon, Bosch Snow Driver, Bosch Envision, Bosch Evolution all solid offerings